Improvement in gas-cocks



M. sTRAToN.

2 Gas Cock. Y

' |\10.7,522. Patented March 2,1869.

MATTHlA-S STRATTON, OF PHILADELPHIA, PENNSYLVANIA.

yLetters Patent No. 87,522, dated lllm'cli- 2, 1869. ,y

IMPROVEMENT IN GAS-COCKS.

The Schedule referred tc in these Letters Patent and making part of the same,

To all whom it may concern Be it known that I, MATTHIAS Sinnamon, ot Phila delphia, Pennsylvania, have invented an Improved Gas- Gock; and I do hereby declare the following to be a full, clear, and exact description of the same.

My invention consists of a cock, having a passage through 'it independently oi' that afforded by the usual plug, or valve, the said passage admitting of heilig .opened or closed by a supplementary plug, orv valve,

allsubstantially as described hereafter, so that, on leaving a store,or retiring in a dwelling-house for the night, the main supply oi' gas may be cut ofi' from the distributing-pipes, while it may iiow through the independent passage in quantities sutiicient for one or two burners, required during the night.

Among the advantages oi' my invent-ion is the preventing, in case of re during the night, the escape of such a volume of gas as may add to the intcnsityof the condagration.

-Inorder to enable others to make and apply my in- -vention, Iwill now proceed to describe its construction .several views.

A. is the casing, and i l B, the tapering plug of a cock, such 4as is used near 4the meter, in a building supplied with gas, there being two branches, land d., on the casing, to which the usual service-pipes are connected.

Ag'ljacent to'the larger plug, B, I arrange a smaller plug, D, adapted to' an opening, made for its reception, in the projecting portion, a, ofthe casing A.

' The transverse hole x, of this plug, can, byv turningthe latter, bernade to coincide with the two passages y and y', the former communicating with the interior of' the branch ff, at one side of the Lrge plug B, and

the passage y with the interior of the branchd', at the opposite side of the said plug B, so that, when the latter is closed, and the liow ot` gas ina direct course thereby cut oli', it lnay continue toA pass, in smaller quantities, to thedistributing-pipes, through the said4 passages y and if, and'through the plug D', (should the latter be open.)

vThe casing A,its branches l and zZ', and plug B, are made ot' the-size demanded by the amount of .gas required to beconsumed throughout the building, but the passages y are made no larger'thau is necessary to supply the small amount of gas which may be required for one 0r two burners during the night.

On leaving a store, or retiring in a dwelling-house, for the night, the plug B is closed, but care is taken that the plug D is open. 4

Should a iireoccur in the store or dwelling, the burning or fracture oi' the gas-pipes therein will add but little to the intensity of the ccniiagration, owing tothe small amount of gas permitted to enter the said pipes through4 the passages 1/'y' of the cock; whereas, the fracture of the pipes, supplied with the usual quantity of gas, not only adds t0 the intensity of the lire, but in many cases renders it unmanageable, and is oftenthe cause of the entire destruction of valuable property.

My improved service-cock may be used to the 'best advantagein theatres, in place of the complex appliances at present employed, for regulating the iiow of gas, for the purpose of imparting more or less brilliancy to the scenes.

As long as the small plug is open, there can be no danger of entirely extinguishing the lights, while, by the simple manipulation of the larger plug, any desired quantity of gas can be distributed to the burners, in accordance with the brilliancy or dulness of the illumination required for different scenes.

While my improved cock ipossesses these ativantages, it loses none of the properties of an ordinary stop-cock,f01-, on closing-both plugs, the gas isentirely cut olf, and any repairs and alterations of the distributiug-pipes may be accomplished.

' But it is as' a safety-medium for dwelling-houses,

stores, Sac., that the advantages of my improvement are most prominent. The manipulijttion ot' the plugs demands the exercise of nothing more than the most ordinary intelligence, and the adjacency of the plugs to each other, of itself, atiords the necessary suggestion as-to the proper mani pulation.

Stops may bc arranged on both plugs, so that the proper extent 'of their opening and closing may not be -left to conjecture.

Locking-appliances may also be so adapted to the larger plug, that it may be -under the control solely of thosewho have most at stake in the safety of the building.

The importance of my improvement as a gas-saving medium, will be apparent. A watchman, for instance, who has not access to the main plug, cannot burn more gas than is required to enable him to attend to his duties properly.

It will be observed, on reference to iig. 3, that the passages y and y', near their communication with the branches ll and d', are slightly inclined. This is to prevent the possibility of water lodging in these branches, and obstructing the flow of gas through the same.

lVithout confining myself to the precise arrangement of parts herein described, 1

I claim as my invention, and desire to secure by In testimony whureol have signed my name to this l Letters Patentspecification, in lthe presence of two subscribing witl A cock, having a passage through it, independently nesses. of that afforded by the usual plug, or valve, when MATTHIAS STRATTON.

the said passage can he opened or closed by a sup-` Witnesses: plementary plug, or its equivalent, substantially as J OHN' WHITE,

and for the purpose herein set forth. HARRY SMITH. 

